The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2026
Filed:
Mar. 26, 2024
Seiko Epson Corporation, Tokyo, JP;
Mitsui Chemicals, Inc., Tokyo, JP;
Yuta Asakawa, Azumino, JP;
Keigo Ando, Matsumoto, JP;
Akira Mizutani, Matsumoto, JP;
Tomotaka Matsumoto, Sapporo, JP;
Yasuyuki Kagawa, Ichihara, JP;
SEIKO EPSON CORPORATION, , JP;
MITSUI CHEMICALS, INC., , JP;
Abstract
The inkjet ink composition is an aqueous ink including: a coloring material; resin particles; and a water-soluble low-molecular weight organic compound. The water-soluble low-molecular weight organic compound contains 0.5 mass % to 9.0 mass % of an amide having a normal boiling point of from 215° C. to 290° C. with respect to a total mass of the ink composition. The resin particles are composite resin particles each formed of a first resin and a second resin that are acrylic resins. When a root sum square δph of each of the first resin and the second resin is calculated from δph=√(δp+δh) where δp and δh represent a polar component and a hydrogen-bonding component of Hansen solubility parameters thereof, respectively, a δphof the first resin is from 4.0 MPato 4.8 MPa, and a δph2 of the second resin is more than 2.6 MPaand less than 3.7 MPa.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile